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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
An insect's ___ deliver nitrogen-rich waste to its digestive tract.
- a. nephridia
- b. nephrons
- c. Malpighian tubules
- d. contractile vacuoles
Introduction: Most of the animals have excretory organs with a tubular structure. The body fluids enter to one end of the tube. As these fluids enter through the tube, water, and essential solutes leave the tube and return to the body fluid. The waste continues to the end of the tube and is eliminated from the body.
Reasons for the correct statement:
Malpighian tubules are a tubular excretory organ that delivers nitrogenous waste and other substances to the waste-processing portion of the digestive tract.
Hence, option c. is correct.
Reasons for the incorrect statement:
Option a. is given as “nephridia”. However, a nephridium takes up the coelomic fluid, adjusts its content, and releases the waste through a pore in the body wall.
Therefore, option a...
Chapter 40 Solutions
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